1、PetrChem12_17.pdf

Depending on the application, the softening point of hydrogenated hydrocarbon resins may vary from 10 to 125°C, and the glass transition temperature, in the range of 0–60°C.

2、Predicting the glass transition temperature and solubility

Furthermore, using solubility parameters, we analyzed the compatibility of rubber and five different resins and found that all five resins had good compatibility with rubber, especially C5/C9 copolymerized petroleum resin and hydrogenated resin.

3、什么是玻璃化转变温度？ (Tg)

玻璃化转变是 非晶态高分子材料 （即非晶型聚合物）固有的性质，是高分子运动形式转变的宏观体现，它直接影响到材料的使用性能和工艺性能，因此长期以来它都是高分子物理研究的主要内容。 绝大多数聚合物材料通常可处于以下四种物理状态 (或称力学状态):玻璃态、粘弹态、 高弹态 （橡胶态）和 粘流态。 在温度较低时，材料为刚性固体状，与玻璃相似，在外力作用下只会发生非常小的形变，此状态即为玻璃态：当温度继续升高到一定范围后，材料的形变明显地增加，并在随后的一定温度区间形变相对稳定，此状态即为高弹态，温度继续升高形变量又逐渐增大，材料逐渐变成粘性的流体，此时形变不可能恢复，此状态即为粘流态。

4、Influence of hydrogenated petroleum resin on structure evolution and

Compared with other polymer resins, polyethylene is suitable for packaging and transportation of frozen food because of its lower glass transition temperature, excellent low-temperature resistance and puncture resistance [1, 2].

5、Machine learning analysis of a large set of homopolymers to predict

In this study, a large dataset of more than 900 polymers with reported glass transition temperature (T g) was assembled from various public sources in order to develop a predictive model...

Glass Transition Temperature of Coatings: Essential Concepts

Get hands-on information on glass transition temperature (Tg) of coatings, how it is measured, and its importance while selecting the right resin depending upon the end-use of coatings.

Accurate predictions of thermoset resin glass transition temperatures

To enable the design and development of the next generation of high-performance composite materials, there is a need to establish improved computational simulation protocols for accurate and efficient prediction of physical, mechanical, and thermal properties of thermoset resins.

Strategies for the fast optimization of the glass transition

Illustratively, the study demonstrates the proficient optimization of the glass transition temperature within a four-component epoxy resin system. This optimization is conducted across varying ranges of bio-content and cost considerations.

Glass transition temperature as a unified parameter to design self

We report a design methodology for self-healable polymers based on glass transition. Statistical copolymer series of two monomers with different glass transition temperatures (Tg) were synthesized, and their self-healing tendency depends on the Tg of the copolymers and the constituents.

Unraveling High Temperature

Results show that the high temperature above Tg substantially triggers noticeable low-frequency quasi-dc conductance behavior and multiple non-Debye relaxation processes in higher-frequency regions.

In modern industry, hydrogenated petroleum resin, as an important thermoplastic material, is widely used due to its excellent physical properties and processability. The glass transition temperature (Tg) of hydrogenated petroleum resin is a critical performance parameter during its application. It determines the temperature point at which the material transitions from a solid to a liquid state, directly affecting its processing, mechanical properties, and heat resistance. This article explores in depth the glass transition temperature of hydrogenated petroleum resin and its significance.

I. Definition and Measurement of Glass Transition Temperature

The glass transition temperature is the critical temperature at which a polymer transitions from a rubbery state to a glassy state, i.e., the temperature point at which it changes from a plasticized state to a hardened state. Determining this temperature is essential for understanding the material’s processing characteristics, predicting its behavior at specific temperatures, and evaluating its long-term stability. Typically, the glass transition temperature is measured using differential scanning calorimetry (DSC), a technique that provides accurate temperature-heat flow curves, enabling precise determination of the material’s Tg.

II. Characteristics of Hydrogenated Petroleum Resin

Hydrogenated petroleum resin is a high-molecular-weight compound synthesized from petroleum through chemical addition reactions. Such resins exhibit excellent mechanical properties, good chemical resistance, and a relatively high thermal deformation temperature. due to the presence of numerous unsaturated double bonds in their molecular structure, hydrogenated petroleum resins are prone to oxidative degradation at high temperatures, leading to performance deterioration. understanding their glass transition temperature is crucial for optimizing processing conditions and extending product lifespan.

III. Importance of Glass Transition Temperature

1. Impact on Processing: The glass transition temperature is a key factor in selecting appropriate processing methods for hydrogenated petroleum resin. Different processes (e.g., injection molding, extrusion) require materials with specific Tg ranges to ensure proper flow and shaping at suitable temperatures.

2. Control of Material Performance: Tg not only influences processability but also determines the final product’s performance. For example, in applications requiring high- or low-temperature resistance, selecting the appropriate Tg ensures the material maintains its mechanical strength and heat resistance under expected operating conditions.

3. Guidance for Product Design: Tg provides insights into material behavior at different temperatures, which is vital for product design and testing. For instance, in outdoor equipment design, Tg measurement helps engineers predict reliability and durability under extreme weather conditions.

4. Prediction of Long-Term Stability: Tg can also forecast the material’s stability during prolonged use. In automotive manufacturing, for example, Tg measurements aid in assessing whether materials will degrade over time, thereby ensuring vehicle safety and reliability.

The glass transition temperature of hydrogenated petroleum resin is a critical physical property index, essential for ensuring high-performance applications across various industries. By thoroughly understanding the concept, measurement methods, and influencing factors of Tg, engineers and researchers can better design and optimize the use of hydrogenated petroleum resin to meet growing industrial demands. In the future, with advances in new material technologies, research and application of hydrogenated petroleum resin’s glass transition temperature will continue to deepen, contributing to industrial progress.